Online Calculators

Free online calculator collection — no download required

16 calculators

Mortgage Calculator

Equal installment & equal principal, supports commercial and housing fund loans

?? Finance

Tax Calculator 2026

2026 tax rates, calculate your tax payable and after-tax income

?? Finance

BMI Calculator

Calculate Body Mass Index based on height and weight

?? Health

Date Calculator

Date difference, date arithmetic, business days calculation

?? Lifestyle

Housing Fund Calculator

Housing fund loan amount and interest rate calculation

?? Finance

Age Calculator

Calculate exact age, days lived, and zodiac

?? Lifestyle

???

Discount Calculator

Calculate sale prices and savings

?? Shopping ?? Finance

Fuel Cost Calculator

Calculate fuel expenses and cost per km

?? Travel ?? Finance

Electricity Calculator

Calculate power consumption and cost

?? Lifestyle ?? Finance

Ideal Weight Calculator

Calculate healthy weight range

?? Health

Overtime Calculator

Calculate overtime pay per labor law

?? Finance

Unit Converter

Length/Weight/Temp/Area

?? Utility

Ovulation Calculator

Track fertile window

?? Health ?? Lifestyle

Loan Comparison

Compare interest rates

?? Finance

Compound Interest

Calculate investment growth

?? Finance

Car Loan Calculator

Auto loan payments

?? Finance

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Car Loan Calculator

Auto loan payments

?? Finance

📱

QR Code Generator

Generate QR codes from text/URL, download as PNG

🔧 Utility

🔑

Password Generator

Generate strong passwords with custom options

🔧 Utility

📊

Percentage Calculator

Calculate percent, increase, decrease and change

🛒 Shopping 💰 Finance

🎲

Random Number Generator

Generate random integers in a custom range

🔧 Utility